Can-soldering machine.



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GAN SOLDERING MACHINE.

APPLIOATIOR FILED AUG. 10. 1903. v

' 7 SHEETS-SHEET 1.

iPATEN'TBD sEPT.19 1905. f

Ch Hl y GAN SOLDBRING MACHINE.

APPLICATION FILED AUG. 10,1903.

1 sums-s112111' 2.

PATENTED SEPT. 19, 1905.

mLAYARs. GAN `soLDRING NIAGHINLv APPLICATION FILED UG. 10,1903.

m'fwesses.

110.800,123. PATBNTED SEPT. 19, 1905. G.H.AYARS. GAN 301115111110MACHINE.

APRLIOATIN FILED AUG. 10,1903.

7 SHEETS-SHEET 4.

PATBNTED SEPT. 19, '1905;'

' o. H. AYARS.

4CAN SOLDERING MACHINE..

ArPLIoATI'oN FILED AUG. 10.1903.

7 SHEETS-SHEET 5.

PATENTED SEPT. 19, 1905. G. H. AYARS. GAN SOLDERING MACHINE.

APPLICATION FILED AUG.1`0. 1903.v

7 SHEETS-SHEET 6.

fnUePQZf v |||l Il *MMM m r rne'ys No. 000,123. PATENTED SBP-11. 19,1905.

GAN soLDBRING MACHINE.

APPLIQATION FILED 1100.101903.

7 VSHEE'JfIS-SLIBLT '1.

UNITED STATESv PATENT OEEIOE.

OHARLES H. AYARS, OE SALEM, NEW JERSEY, ASSIGNOR To AYARS MACHINECOMPANY, OE SALEM.. NEW JERSEY, A CORPORATION OE NEW JERSEY.

OAN-SOLDERING MAOHlNE.

Patented Sept. 19, 1905.

` Application iiled August 10,1903. Serial No. 168,972.

improved organization of machine whereby the several operations will beperformed in a simple and reliable manner. j

Another object of the invention is to provide an improved fluXingdevice'whereby the bodies will be properlyand readily fluXed as theblanks areplaced on the mandrels.

Another object of the invention is to proi vide an improved mechanismfor intermittently revolving and stopping the mandrels in order that thesuccessivey operations may had to the accompanying drawings, in which-vFigure 1 illustrates an elevation of one side of a machine constructedvin accordance with my invention. Fig. 2 llustrates'an elevation of theopposite side of said machine.

of the ejector mechanism; Fig. 6, a vertical Ysectional view of themandrel mechanism;

Fig. 7, an inverted plan View of the ring-` vplate of the mandrelmechanism. Fig. Sis a detail of the movable enameled mandrel-section.Figs. 9 and 10 are enlarged detail views of the fluxing device. Fig. 11is a diagrammatic View of the cam-and-lever mechanism for intermittentlymoving the mandrels. i Fig. 12 1s a similaiview of the ejectormechanism; Fig. 13, a like View of the stop-pin vdevice for stopping therotation of the man- 18, 19, and 20, detail views of the solder-feedFig. 3 .is a top .plan View of same-;.F1g. 4, a rear elevation of same;Fig. '5, a detail plan-.view-` mechanism. Fig. 21 is a perspective Viewof oneof the stop-plates on thebottom of the ring-plate.

Referring to the drawings by letters, A and A designate two verticalframes, which are suitably secured together to form a rigid support forthe working parts of the machine. A driving-shaft a has bearing in eachof said frames, and one end of said shaft carries fast and loose pulleysc and a2, and the opposite end of said shaft is provided with a pinionc3.

A cam-shaft B extends in a direction parallel with said ldriving-shaftand above the latter, and said shaft is supported in suitable bearings bon top of the frames A and A, and at one end said cam-shaft carries agear B', which latter hasy position on the exterior of the frame A andmeshes with the pinion a3, and the other end of said shaft carries a camB2, adjoining the frame A. Two brackets C pljoject vertically above theframes A and A', and these brackets Supporta horizontal rock-shaft C.Another rock-shaft G2 is supported in suitable bearings c, attached -tothe frames, and this latter rock-shaft has position in a vertical planedirectly beneath the rock-shaft C' and in a horizontal plane between theshafts a and B. A cross-bar c' ex.-

tends ina horizonal direction between the frames A and A at the rear ofthe machine, at the front of the machine the said two lframes support ahorizontal plate D.

The mandrel mechanism and adjoining parts will now be described,reference being had particularly to'Fig. 6 of the drawings.

The plate D is supported at 'each `end by the frames A and A, and on itstop surface said plate supports a collar 0l. A shaft D is supportedvertically abovethe plate D, and the lower end of said shaft projectsdown through the said collar d and into said plate. Suitable pins orscrews UZ extend through the collar and impinge against the shaft Dl andserve Y vto hold the latter from vertical displacement. The collar d isalso provided with a plurality ofevenly-spaced. circumferentialdepressions d? for a purpose to be presently described. A headD2 hasaplurality of radial arms D3 and a central bore d4, and said head'ts downover the upper end of the shaft D" and'rests on' top of the collar d.The-radial arms D3 are each provided with horizontally-extending slots0K5, which extend 4from the ends of IOO the arms toward the vhead D2 anddivide each arm into an upper and lower member d and C27. A circularring-plate E, having a horizontal ilange a, is secured to the bottom ofthe arms D3 by screws d, and this ring-plate hangs pendent from saidarms and encircles the head D2. The lower member Z2 of each arm D3 isprovided with a stationary halfcylindric mandrel-section @2. Aninverted-L-shaped or angle bar e3 is pivoted at e* to the lower memberZ2 of each arm, and one end e5 of said bar extends in asubstantiallyhorizontal direction and parallel with the radial arms,while the other end e of each angle-bar hangs pendent from saidpivot-point c2 and projects downwardly through the ring-plate E andterminates near the top surface of the plate D, and these lower ends areeach provided with a roller e2. A plurality of spiral or coiled springseach has one end seated in one of the circumf ferential depressions cl2in the collar (l, and

the other end of said springs each abuts against the lower end of one ofsaid angle-bars e3 and serves to press said lower ends outward and awayfrom said collar. The upper ends e2 of said angle-bars each carries anupper halfcylindric mandrel-section f, each of which latter is pivotedto one of said angle-bars and has a slight independent movementtherewith. These upper mandrel-sections have position directly above thelower mandrel-sections, but are separated therefrom, so as to permit aslight vertical movement, and said upper sections are coated with enamelf8. The body is placed on the mandrel with the overlapping edges or theseam which is to be soldered contacting with the enameled section, whichin the present instance is the movable section f. This enamel coating onthe mandrel is advantageous in that the molten solder will not adhere toit and the soldered bodies will not stick and resist ejectment. Thespace intervening between the two mandrel-sections is also utilizedduring the operation of extracting or withdrawing the soldered bodiesfrom the mandrel-sections in a manner to be hereinafter described. Itwill thus be seen that when the lower ends e of the angle-bars arepressed inward toward the collar CZ by the rollers e2 contacting withthe stationary curved plate es the mandrel-sectionf will be lowered fromthe upper member d of the radial arms. This operation is provided forthe purpose of removing the can-body from the mandrel-sections. Eachofthe upper members ZG of the radial arms is provided with ahorizontallyextending abutment f, against which the overlapping edges ofthe bodies are pressed by the action of the spring on the angle-bars @2and held together prior to and during the operation of soldering.

lt is to be understood that the head D2 and radially extending arms D3are to be intermittently revolved in order to present the mandrelsuccessively to given points,`

lirst, to receive the bodies; second, to solder the bodies, and, third,to eject the soldered bodies. The mechanism therefore employed toaccomplish this step-b v-step revolution of the head andradially-extending arms will now be described, reference being hadparticularly to Figs. 5, (i, 7, and l1.

The ring-plate E is provided with a plurality of depending pins f2,which project downwardly below the [lange w, and one of these pins isprovided for each mandrel and radial arm. For example, if the machine isprovided with six mandrels and six radial arms the ring-plate E will beprovided with six pins A guide-bracket f is secured on top of the frameA, and a rod j" has one end slidably supported in said bracket. whilethe other end of said rod extends along above the top surface of saidframe A toward the cam-shaft B and is piv'otally connected tothe upperend of a lever f, which latter is pivoted at its lower end f" to theframe A'. This lever f5 is provided with a roller f2, which rides orcontacts against the working face g of a cam f/ on the cam-shaft l. Therod f'i is also provided with a plate r/2, which is pivoted thereon andmoves bach and forth therewith, and said plate also has a lateralmovement in a horizontal direction with respect to said rod. Byreference to Fig. 5 it will be seen that the plate r/2 projects inwardlyand has position behind the pinsf, (the position of the pins being shownin dotted lines,) andas the rod j" and plate (/2 are moved forward lbythe cam r/ the pins f2 on the bottom of the ring-plate E will be movedforward adistance equal to the stroke of the rod, and the plate E, headD2, and shaft D will all be revolved or moved forward one step. The rodf" and plate (/2 are returned to their normal positions by a lspiralspring, which latter has one end attached to the lever f2 and its otherend secured to a portion of the frame, as seen in Fig. l1. This forwardmovement is made rapidly, and it is desirable that some means beprovided to insure that the several mandrels will stop at the propel'places, so that the several dill'erent operations simultaneously underwa)7 on the differentmand rels may be properly j )er fori i ied. It isalso desirable that the shock occasioned bythe sudden stopping of therevolving head be relieved, so as to prevent serious damage by repeatedshocks. By reference to Figs. 5, 6, 7, and 13 this mechanism will now bebriefly described.

On the bottom the ring-plate l@ is provided with a plurality of lugs /1which are cast integral therewith, and said lugs are each provided witha threaded hole through which a set screw or bolt projects. These lugsare arranged on the bottom of the flange i near the rim edge, and in thepresent instancesix of these lugs are provided. Secured to the bottom ofthe flange a are a pluralityof stop- IOO plates laf, vone adjoining eachof the lugs and each of which is provided at'opposite ends with a sloth2, through which a bolt passes into the bottom of the ring-plate.

der 7a2, and when the ring-plate is revolved by the movement of the rodff, as heretofore described, these stop-plates are designed Vto bebrought successively over a centering-pin h5, which will engage theshoulders one at a time and center the plate and the mandrels withrespect to the various devices that are to coact with the mandrels.

The centering-pin mechanism will now be described. (See Fig.` 5, 6, and13.) Abracket is secured at the rear of the plate D, and

said bracket is provided with a cross-slot '.I

The centering-pin h projects vertically through the slot of said bracketand above the top of the latter, as seen, and a spring-pressed head 2has position in the slot and abuts against the pin b5 and keeps thelatter pressed toward the frame A. The lower end of they pin h3 (seeFig. 13) is provided with two collars 3, and a spiral spring 4 surroundsthe pin and is secured at one end to one of said collars, while theother end of said spring is secured to the bracket This spring 4 servesto keep the pin '[5 pressed upwardly.4

A lever 5 ispivotally supported on the rockshaft G2 at the rear of themachine, and said lever projects forwardly beneath the camshaft B and atits extreme outer end is bifurcated or forked, and the two prongs 5 ofsaid` forked end project-on opposite sides of the pin if' between thecollars 5. A cam 7 on the cam-shaftB has position immediately above'shaft B and turned depress and release the pin h5 from engagement withthe stop-plates k.

In order to prevent the plate E and head D2 from turning too easily andrunning away from the plate g2, I provide a friction-brake devicecomprising a horizontal Hat bar 7a4, which is supported at one end by avbracket 5,'and at the other end said bar is adjusted laterally. by aset-screw h5 on a bracket la7. The flat bar/4 contacts with the rim edgeof the plate E and serves as a brake. 4

The solder-iron mechanism will next bedescribed, attention being calledto Figs. 1, 2, 3, 4, and 14 of the drawings. In this connection it is tobe ,understood that the body undergoingthe soldering operation is alwayson the mandrel `having position directly above the centering-pin. Arock-sleeve J is mounted on the shaft C', and said sleeve incross-section is substantially square and at its forward end is providedwith a downwardly- Each of these stop-plates z is provided with a shoul--cam-groove b2.

projecting lug y'. A rod j is pivotally connected to the lug j, of thesleeve and extends downwardly, and at its lower end said rod isconnected to-a rock-arm f2. This rock-arm 7'2 is mounted at one end onthe shaft C2, and the other end of said arm is provided with a rollerf5, which has position in the path of a cam j* on the shaft B. It willthus be seen that the revolution of the cam j* will cause the rock-armf2 and rod y" to reciprocate vertically, and thereby impart a rockingmovement` to the sleeve J. A horizontal bar J passes through the sleeveJ and at its forward end is supported in a forked bracket f5, whichpermits the said bar to be moved horizontally 'and also vertically, aswill presently be described A soldering-iron J2 of any suitableconstruction'is secured to the bar J and moves therewith. In thedrawings (see particularly Fig. 1) the iron is shown in a positionslightly raised above the mandrel-section f. The viron is preferably ofthe ordinary hollow construction, havingaburner on the inside, (notshown,) anda tube j conveys gas to said burner. A bar J3 is pivotallyconnected at its forward end to said movable bar J', and the other endof said bar is loosely connected to the upper end of al rock-bar J 4,which is supported onand rocks with the shaft C2. lBy reference to Figs.2, 3, and 4 it will be clearly seen liow the shaft C2 is rocked. A camB2 is carried on` the endl of the shaft B and is provided with acam-groove b2. `A camlever J5 is carried on the end of the shaft C2, andthe forward end of said lever is provided IOO with a roller b5, whichfits and travels in said l It will readily be seen that as the cam B2turns with the shaft B the forward end of the cam-lever J5 will becaused to move up or down as'the roller travels in the said groove, andthis movement of the forward end of said lever J5 causes the shaft C2 tobe rocked one way or another. As the shaft C2 is rocked according to theshape of the groove in the cam B2,fthe upper end of to this feature inconnection with the soldery feed device, which will now be described.

Referring to Figs. 1, 8, 4, and 15 to-20, it

. will be seen that the cross-baro extends horizontally between the twoframes A and A and just beneath and at the rear of the solderffeedmechanism. Secured to this crossbar c and projectingboth above andbeloiw/the same is a bracket n, the top end n of which projects orinclines outwardly over the frame A as only seen in Fig. 4f. At theupper end this bracket pivotally supports a box or housing n2, thelatter being pivoted at its rear upper corner by a bolt n3, so that thelower end of the housing may be moved or swung away from said bracket.The ,front wall fn? of the housing' is provided with a plurality ofopenings a5, from each of which a tube n projects. The ends of each ofthese tubes project forward and are then turned inward over the mandrelholding the body undergoing the soldering operation, as clearly seen inFig. 3. A shaft o extends crosswise of the housing n? and carries aroller 0', whose circumference is roughened or provided with serrations.To the upper edge of the front wall a2 are pivoted a plurality of arms02. In the present instance there are three of these arms, and each isprovided with a depending portion 03 and a-roller 04, which latter hasposition over the serrated circumference of the roller 0. A spiralspring 05 is attached to the free end of each of said arms 02 and theother end of each of said springs is attached to a stationary lug on therear of the bracket a. These springs serve to keep the arms and rollers04 pressed down toward the roller o for a purpose to be presentlydescribed.

Secured to the frame A, beneath the bracket C, is an L-shaped bracketj), having one arm extending vertically at the rear of the machine. Thisvertical arm of said bracket pivotally supports a plurality of reels p',in the present instance three in number, on which the wire-solder p2 iswound. In practice the strands of wire-solder are drawn from the reels1f, and said strands are each fed through an opening p3 in the bracketa, between the rollers 0' and 04, and then through the openings a5 inthe front wall of said housing and throughv the tubes n to a pointadjacent to the soldering-iron J2. It will thus be understood that eachof the three strands of wire-solder are clamped between the rollers 0and 0i by the action of the springs 05. On the exterior of the housingn2 the shaft 0 carries a bell-crank bracket q, which latter is loose onsaid shaft, and said bracket is provided with two arms q and q2, whichlatter project at an angle with respect to each other. also carried onthe outer end of said shaft 0 and beyond said bracket Q, and a pawl g4,pivotally mounted on the arm q' of said bracket, engages theratchet-wheel to cause it to turn in one direction and prevent itsturning in the opposite direction. A bracket o is secured at one end tothe bracket fa, and at its other end said bracket 7' is provided with anelongated slot r, through which a bolt r2 passes and screws into the endof the arm q2 on the bell-crank bracket q. The slot r permits the arm q2to have a slight movement independent of the bracket.

It has heretofore been explained that the A ratchet-wheel (f is housing71,2 is pivotally connected to the upper end a' of the bracket fn, bythe bolt n. The object in thus pivoting said housing and giving thelatter a swinging movement away from the bracket a is to accomplish thefeeding of solder through the tubes u to the soldering-iron J2. This isaccomplished as follows: The front wall 11.4 of the housing is providedat the side adjoining the bell-crank bracket q with adownwardly-projeeting lug or arm s, to which latter the upper end of arod s is pivoted. The lower end of said rod s is pivoted to a cam-leverwhich latter is pivoted between its ends to the bracket n below thecross-bar c, as clearly shown in Figs. 1, 15, 16, and 17. The lower endof the lever s2 is provided with a roller s, which engages or contactswith the working face of a cam s* on the cam-shaft B. This cam s" isprovided at one side with a depression s, into which the roller on theend of the cam-lever s2 drops to permit the lower end of said cam-leverto move outward toward the frame A. This movement of the cam-lever willcause the rod s' to move downward in an inclined direction (as thelatter is pivoted to the inclined end of the arm u, as plainly seen inFigs. 1 and 3) and causes the tubes a to move toward the mandrel and atthe side of the soldering-iron for the soldering operation. The movementof the housing is aided by the tension of the spring s, against theaction of which the cam .v4 works. When the housing n2 is partlyelevated, as shown in the drawings, the tubes u are away from themandrel and soldering-iron and solder has been fed and is projectingfrom the end of the tubes ready to be applied. lt is therefore to beunderstood that the movement of the housing to swing the tubes away fromthe iron and the mandrel causes the feeding of solder. It will beunderstood that the arm g2 is allowed to move only the length of theslot in the end of the bracket 1', while the housing n2 has a greatermovement, and when said arm has reached the end of the slot the bracketq, on which the arms q and q are carried, will merely turn on the shaftn and cause the pawl g4 to engage the ratchet-wheel g3 and give theshaft a slight turn in the direction indicated by the dart. The slightturning of the shaft is imparted to the roller o within the housing,which engages the several strands of wire-solder and draws thewire-solder pi from the reels p' and feeds it through the tubes up.

The mechanism for ejecting the bodies from the mandrels will now bedescribed, attention being called particularly to Figs. 3, 5, and 12.

The plate D is provided with a horizontallyextending guideway 7i, whichextends in a direction parallel with the two frames A and A', and a bar7d extends through said guideway and has a horizontal movement there-IOO . then vertically, and at its upper end said barsupports a U-shapedhead 163. This U-shaped head is provided with inwardly-projecting armskf, which are spaced far enough apart totake over the ends of themandr'els and on diametrically opposite sides of a can-body,

(see Fig. 3,) and each arm of the U-shaped head is provided with a hookh5, the point ends of which project inwardly toward each other and theother end of which hook is connected to a spiral spring.

It has heretofore been stated that a space intervenes between the upperand lower man'- drel-sections fand-e2, respectively, and that such spaceis provided and is utilized in eX- tracting or withdrawing the solderedbodies from the two mandrel-sections. The hooks 7c just above describedproject into the space between the two mandrel-sections f and e2 at theinner ends of the can-body, and as the cam 152 pushes the rod Za and theU-shaped head 7c3 outwardly (the several figures in the drawings showingthe rod moved part of the way out) the hooks 7c engage the end of thebody and draw it from the mandrel. A coiled spring is secured at one endto the rod k', and the other end ofvsaid spring is attached to the plateD, so that the end of the rod 7c will bel kept in contact with the cam792. It will thus be seen that the spring serves to return the U-shapedhead 703 to engage another body.

. the uXing solution.

As the sheet-metaly blanks are inserted on the mandrels the twoconfronting longitudi nal edges are liuxed, so that when in position onthe mandrel with one of said edges overlapping the other both of lsaidedges are pre# pared to receive the solder. The iiuxing device willtherefore now be described, attention being called to Figs. 1, 3, 9, and10. This fluxing devicecomprises a tray Z, having a central vertical armZ', by means of which it is secured to a bracket Z2, suitably supportedby the frame A of the machine. Arms Z3 are pivoted, one at each side, tothe vertical arm Z', and each of said pivoted arms Z3 is provided with apad Z4. The bottom of the tray Z is also provided with a pad Z5, on thetop of which the pads Zonsaid pivoted arms rest when in the normalposition. A tube m eX- tends vertically above the tray and at its up'-per end carries a cup m for the storage of This iuX solution, by meansof an adjusting device connected to the cup'm and not illustrated,p'ermitsthe solution to drip onto the pads Z5 in the tray and sufcientlysoak them, so that the solution will be transferred to the pads Z4 onthe pivoted arms when the latter contact with the pads Z5. The operatortakes the blank and turns the two longitudinal' edges Vtoward eachother.l

The two confronting edges are then placed on top of the tray, so thatone edge will take on one side of the vertical arm Z and the other edgeon the opposite side of said arm. Both ofthe edges of the body will thenhave position beneath the pads Z4, and as the body is moved forward thepivoted arms Z3 will raise and 'permit the body to pass, and the pads Zij will wipe along said two edges and dampen them with iiuX.

.machine is deemed unnecessary, as the operation of the various beendescribed.

A The edges of the blank bodies are first passed through the iiuXingdevice, so that said edges which are to be overlapped are first iiuXed.The iiuxed bodies are then wrapped around the mandrel-sections, with theoverlapping edges resting on the enameled mandrel-section f, when theyare clamped beneath the abutment f The head D2 and radial arms D3 arethen revolved one step by the forward movement of the rod f4 and plateg2, as heretoforedescribed, and another mandrel is presented in front of the iiuxing device to receive a body and the radial arms moved aroundanother step. This last partial revolution of the radial arms andmandrels brings the rst body into position to be operated on bythesolderingiron. The soldering-tubes n are now moved toward the mandrel onwhich the soldering operation is to take place and in readiness for theiron to do its work, as heretofore described. The radial arms are thenparts have each heretofore given another turn and another body placed ona mandrel, and-at the same time another body is soldered and the firstone put on is cooling. This cooling operation is permitted to lastduringthree partial revolutions of the arms, and the bodies are thenengaged by the hooks kf on the ejector device and withdrawn from themandrel. The mandrel from which the body is ejected at the next.revolution of the arms is again presented in front of the iiuxing deviceto receive another body. v The upper mandrel-sections f have herein beendescribed as being coated with enamel f8, made of vitreous material andof a glassy nature. This enamel coat-ing affords an important advantage,as themolten solder employed will not stick to it, and the can-bodiesare therefore readily ejectedV after having been soldered. i V

Having thus fully described my invention,

what I claim as new, and desire to secure by' IIO Y head carrying aplurality of rigid radial clamping-arms, of mandrel-sections rigidlysustained by said head but moving with the latter; mandrel-sectionsmovable between the rigid arms and the rigid mandrel-sections, and meansfor pressing the movable sections against said rigid clamping-arms.

2. In a can-machine the combination with a head havinga plurality ofradial arms; a plurality oi' stationary mandrel-sections supported bysaid head; a plurality 'of bell-crank levers pivoted to said head andmovable in a longitudinal plane therewith; one end ot' each of saidlevers carrying a movable mandrel-section and the other end of each ofsaid levers projecting downwardly; means eoaeting with thedownwardly-projecting ends of said levers to draw the movablemandrel-sections toward the stationary sections while a body is beingplaced thereon, and means for keeping' the mandrels separated after abody has been placed thereon.

3. In a can-machine the combination with the frame; a horizontal platesupported by said frame; a shaft supported vertically by said plate; ahead on said shaft; a plurality of mandrels carried by said head; aring-plate also carried by said head; a rod supported by said frame;means for horizontally reciprocating said rod, and means coactingbetween said rod and ring-plate whereby the latter is revolved as therod is reeiprocated.

4. In a can-machine the combination with the frame; a head supported soas to be revolved above said frame; a plurality of mandrels carried bysaid head; a ring-plate also carried by said head and having a pluralityof downwardly-projecting pins; a rod supported by said frame; a platepivoted to said rod and adapted to engage said downwardlyprojecting pinand means for horizontally moving said rod and pivoted plate so that thelatter will engage the pins on said ring-plate and revolve the same.

5. In a can-machine the combination with the frame; a head supported soas to revolve above said frame; a plurality of mandrels carried by andrevolving with said head; means for. intermittently revolving said headand mandrels; a horizontally-reciprocating bar; a U-shaped ejectordevice carried by said bar and adapted to take successively on oppositesides ot' each of said mandrels, said ejector device having a pluralityof pivoted hooks for engagement with the can-body, and means forreciprocating said bar and U-shaped ejector.

6. In acan-machine the combination with a frame; a head supported abovesaid frame; a plurality of mandrels carried by said head; means forrevolving said head and mandrels intermittently; a bar above saidmandrels; a

soldering-iron carried by said bar; means for reciprocating said bar andsoldering-iron, and means ior moving the soldering-iron vertivlcally soas to permit the head and mandrels to be revolved horizontally.

7. In a Can-machine the combination with a frame; a head supported abovesaid trame; a plurality ol mandrels carried b y said head; a shaftsupported horizontally above said iframe; a rock-sleeve carried by saidshal't; a bar supported by said sleeve; means l'or reciprocating saidbar through said rock-sleeve; a soldering-iron carried by andreciprocating with said bar; and lneans for rocking said sleeve so as toraise and lower said bar and iron.

8. In a can-machine the combination with a Jframe; a head supportedabove said frame; a plurality of mandrels carried by said head; a shaftsupported horizontally above said frame; a rock-sleeve carried by saidshaft; a horizontal bar extending through and supported by said sleeve;a rock-shaft; a rockbar mounted on said rock-shaft and extendingupwardly; a bar connecting the upper end of said rock-bar with saidhorizontal bar whereby to reciprocate the latter through said sleeve; asoldering-iron carried by and moving with said horizon tal bar; andmeans l'or vertically moving said horizontal bar and iron.

9. In aean-maehine the combination with a frame; a head supported abovesaid trame; a plurality of mandrels carried by said head; a shaftsupported horizontally above said frame; a rock-sleeve mounted on saidshaft; a rod connected at its upper end to said sleeve; a cam and levereoaeting with the lower end oi said rod whereby to raise and lower thelatter and vertically rock said. sleeve; a horizontal bar extendingthrough and rocking with said sleeve; a soldering-iron carried by saidbar, and means for reciprocating said bar through said sleeve.

lO. In a can-soldering machine the combination with a head ot' aplurality of mandrels movable with said head; a reciprocatingsoldering-iron coacting with each mandrel sneeessively as the head isrevolved; a pivoted solder-feed device; means for moving' thesolder-feed device toward the iron and mandrel and then away from theiron and mandrel to permit the head and mandrel to be revolved.

l1. In a can-machine the combination with a frame; a plurality ofn'iandrels movable with respect to said frame; a soldering-iron; a boxor housing pivoted with respect to said trame and having one or moresolder-'feed tubes lor directing the solder to a point between thesoldering-iron and mandrel; means i'or moving said box or housing on itspivot whereby to draw the tubes awaytrom the mand rel andsoldering-iron, and means whereby upon the withdrawal ot' said tube thesolder will be fed.

l2. In a can-machine the combination with a head, of a plurality ofmandrels sustained by said head; means for imparting a step-bystepmotion to said head and mandrels; a sol- IOO dering-iron; means forgiving the iron a plurality of forward and backward movements above themandrel while the latter is at rest;

` a solder-conveying tube, and means for withdrawing the tube to permitthe mandrels to pass and then return the tube toward the side of theiron.

In testimony whereofl aix my signature in the presence of twoWitnesses.`

CHARLES H. AYARS.

Witnesses:

J. G. RICHMOND, W. P. BULLINGER.

